Namesakes
American Presidents:
1 president
John Quincy Adams 1825-1829 
Fictional Characters from Television:
1 character
Steve Urkel (a.k.a. Quincy) 1989 Family Matters
Grammy Award Winners:
1 album of the year
(album of the year) Quincy Jones 1991 Back on the Block
Notable Athletes:
1 soccer
(soccer) Quincy Promes 1992-
Notable Musicians:
2 musicians
Quincy Jones 1933-
Reginald "Fieldy" Arvizu (a.k.a. Quincy) 1969-
Olympic Medalists:
2 gold
(gold) Lee Calhoun (a.k.a. Quincy) 1956; 1960 110 m hurdles
(gold) Quincy Watts 1992 400 m; 4x400 m relay